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    syncronizing 2 z-steppers

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    • Vetiundefined
      Veti @spllg
      last edited by

      @spllg said in syncronizing 2 z-steppers:

      2569 P0.3 S1 D2 ; physical drive 0.3 goes forwards ; Z - left

      that line is not correct.

      M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0
      M308 S1 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp1

      B4138 is the default and wrong for your thermistors.

      spllgundefined 1 Reply Last reply Reply Quote 1
      • spllgundefined
        spllg @Veti
        last edited by spllg

        @Veti said in syncronizing 2 z-steppers:

        B4138

        corrected - thanks for the hint, but apparently it does not solve my problem (but maybe others .

        1 Reply Last reply Reply Quote 0
        • SLKittieundefined
          SLKittie
          last edited by SLKittie

          From my understanding. you are trying to say the the Z endstop and probe is io5.in and
          Do you have a z endstop and probe?

          if you have both then i think you need to use diffenrt pins and codes.

          I dont have the Duet 3
          so cant confirem but i dont think you can use the same pin for both Z endstop and Probe.

          spllgundefined 1 Reply Last reply Reply Quote 0
          • spllgundefined
            spllg @SLKittie
            last edited by spllg

            @SLKittie said in syncronizing 2 z-steppers:

            From my understanding. you are trying to say the the Z endstop and probe is io5.in and
            Do you have a z endstop and probe?

            i only have a probe and use it successfully for z-homing and want to use it as z-probe as well.

            if you have both then i think you need to use diffenrt pins and codes.

            I dont have the Duet 3
            so cant confirem but i dont think you can use the same pin for both Z endstop and Probe.

            that's what i'm afraid of. so, should i try to connect io5.in to io6.in and use io5.in as zstop and io6.in as z-probe? any opinions?

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            • SLKittieundefined
              SLKittie
              last edited by

              You may need to have a look at these websites as you dont have the configerastion for the probe set up. as there is no G31 command after your M558 to say where the prob is and how to activae it.

              https://duet3d.dozuki.com/Wiki/Setting_up_automatic_probing_of_the_print_bed

              https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe

              Just out of curiosity how do you code your Config.g?

              spllgundefined 1 Reply Last reply Reply Quote 0
              • spllgundefined
                spllg @SLKittie
                last edited by

                @SLKittie said in syncronizing 2 z-steppers:

                You may need to have a look at these websites as you dont have the configerastion for the probe set up. as there is no G31 command after your M558 to say where the prob is and how to activae it.

                https://duet3d.dozuki.com/Wiki/Setting_up_automatic_probing_of_the_print_bed

                https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe

                thanks for the hints - going to read tomorrow (i find it hard to get started because i feel information is kind of scattered)

                Just out of curiosity how do you code your Config.g?

                initial version was generated by a reprap website (i have forgotten the url)..

                do i really need distinct z-endstop and z-probe? i cannot believe this.

                dc42undefined Danalundefined 2 Replies Last reply Reply Quote 0
                • dc42undefined
                  dc42 administrators @spllg
                  last edited by

                  @spllg said in syncronizing 2 z-steppers:

                  do i really need distinct z-endstop and z-probe? i cannot believe this.

                  If you use the Z probe to home Z then you don't need a Z endstop. https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_Z

                  Duet WiFi hardware designer and firmware engineer
                  Please do not ask me for Duet support via PM or email, use the forum
                  http://www.escher3d.com, https://miscsolutions.wordpress.com

                  spllgundefined 1 Reply Last reply Reply Quote 1
                  • Danalundefined
                    Danal @spllg
                    last edited by

                    @spllg said in syncronizing 2 z-steppers:

                    do i really need distinct z-endstop and z-probe? i cannot believe this.

                    I use a single microswitch, defined as a probe, to both home and auto-bed-level (three motors) and mesh probe a bed on a CoreXY.

                    So, define a probe for Z, and don't define an endstop for Z, and it "just works".

                    Delta / Kossel printer fanatic

                    Jaw8850undefined spllgundefined 2 Replies Last reply Reply Quote 0
                    • Jaw8850undefined
                      Jaw8850
                      last edited by

                      I'm doing same thing, I did have to define Z-Probe in my config.g though. I'm having issue with 1 side dropping but I don't believe it is related to the issue you're having. Here is my config G and you can see Z-Probe settings

                      ; Configuration file for Duet WiFi (firmware version 2.03)
                      ; executed by the firmware on start-up
                      ;
                      ; generated by RepRapFirmware Configuration Tool v2.1.4 on Tue Dec 24 2019 07:12:07 GMT-0500 (Eastern Standard Time)

                      ; General preferences
                      G90 ; send absolute coordinates...
                      M83 ; ...but relative extruder moves
                      M550 P"Alex's Hypercube" ; set printer name

                      M667 S1 ; select CoreXY mode

                      ; Network
                      M552 S1 ; enable network
                      M586 P0 S1 ; enable HTTP
                      M586 P1 S0 ; disable FTP
                      M586 P2 S0 ; disable Telnet

                      ; Drives
                      M569 P0 S1 ; physical drive 0 goes forwards
                      M569 P1 S1 ; physical drive 1 goes forwards
                      M569 P2 S1 ; physical drive 2 goes forwards
                      M569 P3 S0 ; physical drive 3 goes backwards
                      M584 X0 Y1 Z2:4 E3 ; set drive mapping
                      M671 X-30:330 Y156:156 S1.5 ; leadscrews at left and right
                      M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
                      M92 X161 Y160 Z809 E819 ; set steps per mm
                      M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
                      M203 X18000.00 Y18000.00 Z300.00 E350 ; set maximum speeds (mm/min)
                      M201 X3000.00 Y3000.00 Z100.00 E350 ; set accelerations (mm/s^2)
                      M906 X1400 Y1400 Z1400 E1000 I30 ; set motor currents (mA) and motor idle factor in per cent
                      M84 S30 ; Set idle timeout

                      ; Axis Limits
                      M208 X0 Y0 Z-5 S1 ; set axis minima
                      M208 X280 Y280 Z370 S0 ; set axis maxima

                      ; Endstops
                      M574 X1 Y1 S1 ; set active high endstops
                      M574 Z1 S2 ; set endstops controlled by probe
                      M591 D0 P5 C3 R40:120 E3.0 S0 ; Duet3D laser sensor for extruder drive 0, connected to endstop input 3 (E0), tolerance 40 to 120%, 3mm comparison length, disabled

                      ; Z-Probe
                      M558 P1 XO YO H3 F200 T9000 B1 R0.1 A5 ; set Z probe type to modulated and the dive height + speeds
                      G31 P500 X-27 Y0 Z1.650 ; set Z probe trigger value, offset and trigger height
                      M557 X20:240 Y20:260 S220 ; define mesh grid

                      ; Heaters
                      M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
                      M305 P0 T100000 B4725 C7.06e-8 ; set thermistor + ADC parameters for heater 0
                      M143 H0 S120 ; set temperature limit for heater 0 to 120C
                      M307 H1 A390.9, C258.2, D5.4, S1 ; hot end thermister tuning
                      M305 P1 T100000 B4725 R4700 ; set thermistor + ADC parameters for heater 1
                      M143 H1 S280 ; set temperature limit for heater 1 to 280C

                      ; Fans
                      M106 P0 S0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
                      M106 P1 S1 I0 F500 H1 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
                      M106 P2 S0.5 I0 F500 H1 T45 ; set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

                      ; Tools
                      M563 P0 D0 H1 F0 ; define tool 0
                      G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
                      G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C

                      ; Custom settings are not defined

                      ; Miscellaneous
                      M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss

                      Here is my bed.g

                      ; bed.g
                      ; called to perform automatic bed compensation via G32
                      ;
                      ; generated by RepRapFirmware Configuration Tool v2.1.4 on Tue Dec 24 2019 07:12:06 GMT-0500 (Eastern Standard Time)
                      M561 ; clear any bed transform
                      G28 ;home
                      G30 P0 X0 Y156 Z-99999 ; probe left leadscrew
                      G30 P1 X260 Y156 Z-99999 S2 ; probe right leadscrew and calibrate 2 motors
                      G29 ; run mesh bed leveling

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                      • Jaw8850undefined
                        Jaw8850 @Danal
                        last edited by

                        @Danal this sounds interesting, do you have any pictures so I can get an idea of how to maybe adapt this to mine. I currently run a DC42 IR sensor and I think it may not be the most reliable and a BL touch has more wires and I already have a 22 pin connector full on my X carriage and don't have room to run the extra 2 for the BL Touch neatly so this may give me a better option.

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                        • Danalundefined
                          Danal
                          last edited by

                          I will get a pic... but the microswitch is just on the bottom of the carriage that grabs tools (this is a toolchanging printer).

                          Definition statements for all endtstops and probes:

                          ; Endstops and probes
                          
                          M574 X1 S1 P"io1.in"                    ; Set homing switch configuration X1 = low-end, S1 = active-high (NC)
                          M574 Y1 S1 P"io2.in"                    ; Set homing switch configuration Y1 = low-end, S1 = active-high (NC)
                          M574 U1 S1 P"io3.in"                    ; Set homing switch configuration U1 = low-end, S1 = active-high (NC)
                          ;M574 Z1 S1 P"!io4.in"                   ; Set homing switch configuration Z1 = low-end,  S1 = active-high (NC).  This is used for tool probing, not actual Z height.
                          
                          M558 K0 P5 C"io4.in" H5 A5 T6000 S0.02   ; Z probe - Set the height of the bed when homing G28.  Combined with content of bed.g as invoked by G32, levels bed. Also used for Mesh. 
                                                                     ; P5 = Switch, NC
                                                                     ; C  = Input Connector
                          					   ; Hn = dive height
                          					   ;   A bigger dive height prevents a situation where the bed is out of alignment by more than the dive height
                          					   ;   on any corner, which can crash the hot-end into the bed while moving the head in XY.
                          					   ;   Probing speed and travel speed are similarly reduced in case the Z probe isn't connected properly (or
                          					   ;   disconnects later after moving to a point) giving the user more time to stop.
                                                                     ; An = Number of times to probe each point. 
                                                                     ; Tnnn = Travel speed between probe points. 
                                                                     ; Snnn = Tolerance when probing multiple times. Two readings inside this window and we move on. 
                          

                          Delta / Kossel printer fanatic

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                          • spllgundefined
                            spllg @dc42
                            last edited by

                            @dc42 thank you very much for this valuable hint.

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                            • spllgundefined
                              spllg @Danal
                              last edited by

                              @Danal i do not have a z-endstop mounted near the nozzle - i don't hav a z-endstop at all.

                              dc42's hint solved my issue.

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